1] Relative risk is the measure of the strength of the association between the suspected cause & event .Relative risk of one indicates :

1. Positive association exposure & disease

2. 2 times high association

3. No association at all

4. 4 times higher association

 Ans : C

2] In statistical literature data are broadly classified as interval scale data ,ordinal scale data ,& categorical data . Blood groups will be an example for :

1. Interval scale data

2. Ordinal scale data

3. Categorical data

4. None of the above

Ans : C

3] Best indicator of air pollution is :

1. Lead

2. Dust

3. Carbon monoxide

4. Sulphur dioxide

 Ans: D

4] In  "iceberg Phenomenon " the tip represents what the physician sees in clinical practice & submerged portion of the iceberg represents sub clinical cases , carriers ,  undiagnosed cases . Essential purpose of screening test for a chronic disease is to identify :

1. The floating tip of the iceberg

2. Hidden portion of the iceberg

3. Both A & B

4. Complications of the disease

Ans : B

5] The minimum recommended dose of "free" residual chlorine in water for routine chlorination {in mg/lts} is:

1. 1.0 mg after 1 hour contact

2. 1.0 mg after 1/2 hour contact

3. 0.5 mg after 1 hour contact

4. 0.5 mg after 1/2 hour contact

Ans: C

6] Highest protein content is in :

1. Red Gram

2. Soya Bean

3. Bengal gram

4. Black gram

Ans: B

7] Sickness absenteeism is a useful index to assess :

1.  Working environment

2. Sincerity of the workers

3. Worker management relationship

4. State of health of the workers

Ans: D

8] The change occurring in the disease frequency over many years is called :

1. Cyclical trend

2. Seasonal trend

3. Secular trend

4. None of the above

Ans: C

9] All the following are health policy indicators except :

1. Political commitment to health for all

2. Resource allocation

3. Disability prevalence

4. Community involvement

Ans: C

10] Sensitivity parameter of combined pediatric & Obstetric care in our country is :

1. PMR

2. NMR

3. IMR

4. Post neonatal mortality rate

Ans : A

11] Strength of sewage is expressed in terms of :

1. E-Coli Count

2. Suspended particles

3. Chemical oxygen demand

4. Biological oxygen demand

Ans: D

12] Measures involved in sentinel surveillance includes all the following except :

1. Identifying missing cases in notification of diseases

2. Identifying new cases of infection

3. Identifying old & new cases

4. Identifying cases free of disability

Ans : D

13] The management technique which is more promising tool for application in health field is : 

1. Cost effective analysis

2. Cost benefit analysis

3. Cost accounting

4. Input output analysis

Ans: A

14] In a randomized clinical trial , the essential purpose of randomization is :

1. To produce double blinding

2. To decrease the follow- up period

3. To eliminate the selection bias

4. To decrease the sample size

Ans : C

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